Bugfix/agentflow v2 session id override (#4999)

* fix overrideconfig sessionId

* Fix: update chatflow query to use sessionId instead of chatId

Author: HenryHengZJ

packages/server/src/utils/buildAgentflow.ts

@@ -1571,7 +1571,7 @@ export const executeAgentFlow = async ({
         .find({
             where: {
                 chatflowid,
-                chatId
+                sessionId
             },
             order: {
                 createdDate: 'ASC'